Grain unloading height adjusting device and combine harvester

By designing a grain unloading height adjustment device with multiple height adjustment holes and telescopic drive components on the combine harvester, the problem of adjusting the unloading height of different grain receiving vehicles is solved, achieving flexible adjustment and efficient unloading, and avoiding grain spillage.

CN224734273UActive Publication Date: 2026-09-11ZOOMLION HEAVY MASCH CO LTD
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Patent Information

Application Number
CN202522214744.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2026-09-11
Estimated Expiration
2035-10-20

AI Technical Summary

Technical Problem

The existing unloading height adjustment device for combine harvesters cannot meet the needs of different grain receiving vehicles, which easily leads to grain spillage during the unloading process.

Method used

A grain unloading height adjustment device was designed. By setting multiple adjustment holes of different heights on the fixed frame and connecting the grain unloading cylinder with a telescopic drive component, the grain unloading cylinder can be rotated and adjusted in the vertical plane to adapt to the height requirements of different grain receiving vehicles.

Benefits of technology

It enables flexible adjustment of the unloading height, avoids grain spillage, improves unloading efficiency, adapts to various types of grain receiving vehicles, and reduces user losses.

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Abstract

The utility model provides a kind of unloading height adjusting device and combine harvester, comprising: grain tank, is provided with the fixed frame with at least two adjusting holes, the height of each adjusting hole is different;Unloading cylinder, one end and the grain tank communication and can rotate relative to the grain tank, the other end is provided with unloading port;Telescopic drive part, installation end is used for and the adjusting hole of any height can be detachably connected, output end and the unloading cylinder are connected, and the telescopic drive part is used to drive the unloading cylinder relative to the grain tank in vertical plane rotates.The utility model can be according to the form of farmer's grain receiving car, quickly and effectively replace the adjusting hole connected by unloading cylinder, so that the height adjustment range of unloading cylinder can adapt to different grain receiving car form, can avoid telescopic drive part telescopic stroke constraint to cause the case that unloading cylinder lowest position is higher, so that unloading height adjusting device can adapt to existing various unloading height demand.
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